Starting today we’re making Quickoffice for Android and iOS available for free, for everyone. With Quickoffice, you can edit Microsoft Office documents across your devices, giving you the freedom to work with anyone no matter what hardware or software they’re using. Plus, it’s integrated with Google Drive storage so you can safely access your files from anywhere.

Not quite. MS didn't merely bundle IE for free with Windows, they spliced it into the OS in a way that made removal by end users a nearly hopeless proposition. They also subverted the HTML landscape by introducing proprietary HTML features (quickly copied, but disruptive nonetheless). Combined with the anticompetitive OEM "deals" to only ship IE, it was a concerted effort to force their userbase to use IE.

All these machinations and relentless backstabbing because they feared Netscape would become a platform that made Windows obsolete. Ironically, it is Google's Chrome that is doing exactly what MS feared back then, only 20 years later.

MS could have gone scott free, if they had just bundled IE with Windows in a removable fashion and hadn't forced OEM's to only ship IE.

When it comes to Google QuickOffice, I've not seen any signs that Google is going to force phone manufacturers to ship it, nor any indication that QuickOffice will be spliced into Android.

Yes, it probably sucks for a lot of developers, who dabbled in developing basic document editing on Android in the hope to make a few bucks. That said, for free offerings are not illegal and Google leaves it up to the end user to use QuickOffice or not. If you want to make a buck on document editing on Android, the new baseline is QuickOffice and your product needs to be better if you hope people will pay for it.